Select Core CavityKeyCreator \ Tools \ Core-Cavity-Split \ Select-Core-Cavity
Location: Tools>Core/Cavity Split>Select Core Cavity
Use this feature to place faces that are vertical or near vertical to the pull direction and cannot be determined to be part of either the core or cavity in the ambiguous or middle subgroup. These ambiguous faces may be manually placed into any group with the select core cavity dialog.
Using the Function:
1 Select Select Core Cavity from the Tools>Core/Cavity Split submenu.
2 The Select Core Cavity dialog appears. Select whether to Move to Core, Cavity or Middle.